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Pros Pros
  • Exceptional image sharpness across the full focal range
  • Highly effective image stabilization system
  • Fast, accurate, and silent autofocus performance
  • Robust, weather-sealed professional-grade build quality
  • Impressive close-focusing capabilities
Cons Cons
  • Slow maximum aperture limits low-light performance
  • Heavy and bulky physical design
  • High retail price point
  • Vignetting and corner shading at longer focal lengths
  • Variable aperture can be inconvenient for consistent exposure

Launch price Launch price $2,199
Focal length & aperture Focal length & aperture 100-400mm f/4.5-5.6
Mount & coverage Mount & coverage Canon EF · Full-Frame
Stabilization Stabilization Optical IS
Close focus Close focus 98 cm (0.31x)
Filter thread Filter thread 77mm
Autofocus motor Autofocus motor Ultrasonic
Weight & size Weight & size 1640g (3 lb 9.8 oz) · 94 x 193 mm (3.70 x 7.60 in)

Announcement date Announcement date November 11, 2014
Launch MSRP Launch MSRP $2,199
Lens mount Lens mount Canon EF
Image circle coverage Image circle coverage Full-Frame
Lens type Lens type Zoom

Elements Elements 21
Groups Groups 16

Focal length (wide) Focal length (wide) 100mm
Focal length (tele) Focal length (tele) 400mm
Max aperture (wide) Max aperture (wide) f/4.5
Max aperture (tele) Max aperture (tele) f/5.6
Minimum aperture Minimum aperture f/32–38
Diaphragm blades Diaphragm blades 9

Diagonal angle of view Diagonal angle of view 24° - 6°

Autofocus motor Autofocus motor Ultrasonic
Minimum focus distance Minimum focus distance 98 cm
Maximum magnification Maximum magnification 0.31x
Focus mechanism Focus mechanism Internal focus

Optical stabilization (OIS) Optical stabilization (OIS) Yes

Weight Weight 1640g (3 lb 9.8 oz)
Maximum diameter Maximum diameter 94mm (3.70 in)
Length Length 193mm (7.60 in)
Filter thread Filter thread 77mm
Weather sealing Weather sealing None
Tripod collar Tripod collar Included